.van-nav-bar__text {
  color: #333 !important;
}
.van-nav-bar .van-icon {
  color: #333 !important;
}
.van-nav-bar.on {
  position: fixed!important;
  top: 0;
  width: 100%;
  background-color: #fff;
  z-index: 99!important;
}
